255550464 has 264 divisors, whose sum is σ = 834520960. Its totient is φ = 77635584.

The previous prime is 255550459. The next prime is 255550469. The reversal of 255550464 is 464055552.

It is an interprime number because it is at equal distance from previous prime (255550459) and next prime (255550469).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255550469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3234777 + ... + 3234855.

Almost surely, 2^255550464 is an apocalyptic number.

255550464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255550464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417260480).

255550464 is an abundant number, since it is smaller than the sum of its proper divisors (578970496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255550464 is an equidigital number, since it uses as much as digits as its factorization.

255550464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The square root of 255550464 is about 15985.9458275074. The cubic root of 255550464 is about 634.5885395281.

The spelling of 255550464 in words is "two hundred fifty-five million, five hundred fifty thousand, four hundred sixty-four".